Diestock



Feb. 26, 194s. H. o. OLSEN- 2,395,753

DIE STOCK Filed June 1, 1944 Yimmuun Patented Feb. 26, 1946 UNITED STATES PATENTV OFFICE 4 Claims.

The present invention relates to die stocks, One of its objects is to provide a die stock which is not subject to torsional .twisting during use.

Another object is` the provision of a die stock whose axial dimensions are smaller than those of conventional die stocks. p

A further object is the provision of a die stock whose component parts are fewer in number than the parts or" conventional die stocks.

These and other objects are attained by providing a ring shaped body member carrying a pawl and a handle lever radially disposed thereto, a ratchet wheel rotatably mounted wholly within the connes of said body member, a die member xedly mounted wholly within the coniines of said ratchet wheel, and a guide ring xedly mounted at least in part within the confines of said ratchet wheel. Other features of the invention wil1 hereinafter be described.

Preferred embodiments of the invention are shown in the accompanying drawing in which:

Figure 1 is a plan View of one embodiment of the device with a cut-away portion exposing the operative elements of the ratchet member thereof Figure 2 is a section on the line 2-2 of Figure 1;

Figure 3 is a plan View of a second embodiment of the device;

Figure 4 is a plan View of a third embodiment of the device with a cut-away portion exposing the operative elements of the ratchet member thereof;

Figure 5 is a section on the line 5--5 of Figure 4;

Figure 6 is a similar View of the die member thereof; and

Figure 7 is a plan view of said die member.

Referring to the embodiment shown in Figures l and 2, the die stock I comprises a combination die-guide-ratchet wheel member II rotatably mounted within a pawl carrying ring I2 which has a handle receiving aperture I3 formed therein. Said die and ratchet wheel members are mounted wholly within said ring and the guide member at least partly within said ring.

The combination member II consists of a die 20 and a guide ring 2| mounted in a ratchet wheel 22, all of said parts being in axial alignment with each other, said die member being mounted wholly within the connes of said ratchet wheel, said guide ring partly within said confines. Combination member II may be made of a single piece of metal or of separate die, guide 55 and ratchet wheel units aiiixed to one another by a metallic bond as by sweating. Of course chaser dies I9 are affixed in die member 20 in the usual way and are made of different, tougher material. Axial movement of combination member I I relative to said pawl carrying ring I2 isA prevented by peripheral anges or ridges I8 which are integral with or aiiixed to the two sides of ratchet wheel 22.

The pawl carrying ring I2 is conventional and comprises a ring whose inner diameter is slightly larger than the outer diameterof combination member I I thus enabling the latter to t snugly, yet rotatably, in the former. 'I'he ring has twov radial apertures I3 and 25 formed therein, said apertures being diametrically opposite each other. The function of aperture I3 is to receive the handle (not shown). Integral withring I2 or afxed thereto, is outwardly projecting, radially disposed, apertured barrel 2E, said barrel being in axial alignment with aperture 25. The aperture 21 in said barrel has a reduced portion at its far end, thus forming an inner, circumferential shoulder 28. Turnably and slidably disposed in said aperture 21 is the pawl 29, said pawl comprising an enlarged, lower, operational end 30, an upper reduced stem portion 3Iv aixed thereto or integral therewith, said stem portion projecting outwardly beyond said barrel, a knob 32 afIixed to the outer, projecting end of said stem portion, a helical torsion spring 33 mounted on said stem portion between and against said lower, operational end 33 and said barrel shoulder 28, and a cross-piny 34 transversely fixed .in the upper portion of said stem portion, in spaced relation with respect to said knob, said pin being adapted, in response to the action of said spring, to enter radial slots 35 formed in the far end of said barrel.

Pawl carrying ring I 2 has its identical counterpart in the embodiment shown in Figure 3. In this embodiment, however, die member 4I and ratchet wheel 42 in which it is wholly mounted,

' are separate units, relative rotational movement between the two being preventedl by means of outwardly projecting lug portions 43 of chaser dies 44 which extend beyond the outer peripheral surface of said die member, and project into correspondingly shaped and positioned grooves 45 formed in the inner peripheral surface of said ratchet wheel.

In this embodiment the guide ring may either be integral with or affixed to the ratchet wheel or integral ywith or aiiixed to the die member. Here too the guide member is situated at least in part within the confines of said ratchet wheel.

In the embodiment shown in Figures 4 to 7 inclusive, the pawl carrying ring 50 which is the counterpart of pawl carrying ring I2 has a slightly diierent structure as hereinafter described. It has two handle receiving apertures 5| instead of one, and its pawl carrying barrel 52 which is the counterpart of barrel 25, is axially aligned with neither of said apertures, In this embodi ment the apertures are' formed diametrically opposite each other, the barrel 52 being positioned adjacent one of said apertures. Said ring has internal screw threads 53 at one edge and two flangesan inner, radial flange 54 and an outer, lateral flange ES-formed at the other edge. A. Washer or ring 56 having peripheral screw threads is screwed into pawl carrying ring 50 at itsthread-` ed side.

An inner circumferential channel is thus formed,t the. inner surface of they pawl carrying ring 50, the radial flange 54 and the washer 56 constituting its three wal1s litV is in this channel that ratchet wheel 60 isv rotatably mounted. In thisVV embodiment, as in the embodiment shown in Figure e, they die; member lill and the guide ring 62 forma unitary structure separate from ratchet wheel Gil. As can be seen in the drawing, particularly Figures 4 and '7 thereof, the die member al is polyhedral-in this case octahedral-in shape, instead of circular or cylindrical as in the caset with die member 41'. TheA inner surface of the' ratchet wheel 631 corresponds in shape to octahedrally shaped diev member 6i, so that each ofthe individual, plane surfaces of the latter has its corresponding plane surface on` the inside of the'ratchet wheel,` the plane` surfaces of the die member being parallel, respectively, tothe plane surfaces of thef ratchet wheel It is this polyhedral arrangement that prevents rotary movement of' these parts relative to each other.

Ascan beseeninFigures and 6, the peripheral portion 63"- of guide ring 6-2r abuts the adjacent sides of radial flange 54 and lateral flange $5l A. Vgroove 6'4- Vis formed inA said peripheral portion, said groove.- being adapted tov receive a tongue orl pin, 65 which' is radially and slidably mounted in lateral flange 55. Said pin is afiixed toa leaf springA` iiwhich in` turn'r is xed to lteral flange, 55, To disengage the spin from the groove it. is only necessary to raise the pin. end of the spring with. the finger. This pin-in-groove construction prevents axial movement of the dieguderi'ng` unit, relative to the pawl carrying ring lLas well as to the ratchet Wheel 60.

Figure 4 shows how handle lever 10 is inserted into one of the two handle receiving apertures 5I.

It is evident that the broad principles of the invention cover a multitude of embodiments not herein shown. For example washer o1' ring 56 might be alxed to pawl carrying ring by means of bolts, screws or rivets instead of the external screw threads with which it is equipped. Such changes are herein contemplated and claimed.

I claim:

l. A die stock comprising a ring shaped body member, a pawl and a handle lever carried by said body member in radial relation thereto, a ratchet wheel rotatably mounted wholly within said body member, a die member iixedly mounted wholly within said ratchet wheel, and a guide ring xedly mounted at least in part within said ratchet wheel, said body member, ratchet wheel, die member and guide ring being in coaxial relationship with. each other.

2'. A die stock comprising a. ringr shapedy body member, aA pawl. and a handle lever carried by said body member in radial relation thereto a. ratchet wheel. rotatably mounted wholly within said body member, said ratchet wheel being engaged by said pawl, said raztchet wheel having a pair of peripheral flanges aixed to the sides thereof to prevent axial movement thereof relative to said body member, a die member mounted wholly within said ratchet wheel, a guide ring mounted: at least in part within said ratchet Wheel; said ratchet Wheel', die member and guide ring being affixed to each other by a metallic bond, said body member, ratchet wheel, die member and' guide ring. being in coaxial relationshipwith each other.

3. A die stock asf claimed in claim 1 in which the ratchet wheel has lug receivingV apertures formed in its 4inner circumferential surface and; thev die member carries lugsA on itsv outer circumferential4 surface,v said. lugs being integralA with chaser diesY carried by said' die member, said lugs being adaptedY to project into-said apertures;

to prevent relative movement between said: ratchet wheel and said die member.

4. A die stock as claimed in` claim I inwhich the die member is polyhedrally shaped andthey inner surface of the ratchet wheel is correspondingly shaped to prevent relative rotary movement. between said diey member and said ratchet wheel.

HARRY Oi., OLSEN. 

